QiangLi P8 40x20 panel

[GnuPP]

Hi,
I have one of the QiangLi P8 panels @JiDudeS suggested in his pull #879 . I tried so much things, but can't get it to work. I'm using the active-3 board.

This is my command line string: sudo ./demo -D0 --led-rows=20 --led-cols=40 --led-multiplexing=10 --led-gpio-mapping=regular

I also tried all scan-modes and row-addr-types. No readable result.
Anybody here who got the panel to run (maybe @JiDudeS)?

Any hints whatelse I could try?
thanks!

[GnuPP]

solved the problem. it was the missing --led-slowdown-gpio statement.

[fistel]

I am working on the same panel. But i didn't found a way to manage it. Some one can help me ?